What’s the difference between being introverted and being shy? What are extroverts so cheerful about? And does Angela’s social battery ever run out?

Take the Big Five inventory: freakonomics.com/bigfive

SOURCES:
- Susan Cain, author.
- Will Fleeson, professor of psychology at Wake Forest University.
- Sigmund Freud, neurologist and founder of psychoanalysis.
- Adam Grant, professor of management and psychology at the University of Pennsylvania.
- Carl Jung, psychiatrist and psychoanalyst.
- Donald Kamentz, founder and C.E.O. of Contigo Ed.
- Sonja Lyubomirsky, professor of psychology at the University of California, Riverside.
- Seth Margolis, professor of biological chemistry at Johns Hopkins University.

RESOURCES:
- "A Crucial Character Trait for Happiness," by Arthur C. Brooks (The Atlantic, 2023).
- "Experimental Manipulation of Extraverted and Introverted Behavior and Its Effects on Well-Being," by Seth Margolis and Sonja Lyubomirsky (Journal of Experimental Psychology: General, 2020).
- "Challenges to Capture the Big Five Personality Traits in Non-WEIRD Populations," by Rachid Laajaj, Karen Macours, Daniel Alejandro Pinzon Hernandez, Omar Arias, Samuel D. Gosling, Jeff Potter, Marta Rubio-Codina, and Renos Vakis (Science Advances, 2019).
- "Rethinking the Extraverted Sales Ideal: The Ambivert Advantage," by Adam Grant (Psychological Science, 2013).
- "The Power of Introverts," by Susan Cain (TED Talk, 2012).
- Quiet: The Power of Introverts in a World That Can't Stop Talking, by Susan Cain (2012).
- "Personality Trait Change in Adulthood," by Brent W. Roberts Daniel Mroczek (Current Directions in Psychological Science, 2008).
- "Toward a Structure- and Process-Integrated View of Personality: Traits as Density Distributions of States," by William Fleeson (Journal of Personality and Social Psychology, 2001).

EXTRAS:
- Big Five Personality Inventory, by No Stupid Questions (2024).
- “Personality: The Big Five,” series by No Stupid Questions (2024).

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